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Finding the Fourth Proportional to 57,498.70, 86,251.70 and 18,057.37

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Solution

The fourth proportional to 57,498.70, 86,251.70 and 18,057.37 is: 27,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,498.70 : 86,251.70 = 18,057.37 : x
  2. Step 2: Convert to fraction form
    57,498.70/86,251.70 = 18,057.37/x
  3. Step 3: Cross multiply
    57,498.70x = 86,251.70 × 18,057.37
  4. Step 4: Simplify right side
    57,498.70x = 1,557,478,860.03
  5. Step 5: Solve for x
    x = 1,557,478,860.03/57,498.70
  6. Step 6: Final answer
    x = 27,087.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.